Effects of SiO2 / SiC particles on the thermal stability of carbonate eutectic salt / ceramic composite

2nd International Workshop on Materials Science and Mechanical Engineering

机械制造;材料科学

Deng, Z.F.^1 ; Tan, H.^2 ; Zhang, G.Q.^1 ; Xu, G.Z.^1 ; Yang, C.Y.^1 ; Chang, L.^1 ; Du, Z.L.^1

State Key Laboratory of Advanced Power Transmission Technology, Global Energy Interconnection Research Institute Co. Ltd., Beijing

102211, China^1

North China Electric Power University, School of Energy Power and Mechanical Engineering, Beijing

102206, China^2

关键词: Eutectic salt;    Phase change enthalpy;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/504/1/012034/pdf
DOI  :  10.1088/1757-899X/504/1/012034

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Using Na2CO3-K2CO3 eutectic salt as phase change material, a novel composite was prepared by doping minor amount of SiO2 or SiC into eutectic salt / ceramic composite. Further, the possible effects of SiO2 or SiC on the thermal stability of the composite were investigated. The obtained results revealed that SiC can increase phase change enthalpy and meanwhile decrease thermal conductivity. But SiO2 showed little effects on thermal conductivity although it can reduced phase change enthalpy.